Lùyīnjī céngjīng shì měi gè jiātíng zhēnguì de diànqì.
The tape recorder was once a treasured appliance in every household.
Tips
usage
录音机 is somewhat dated - modern devices use 录音笔 (digital voice recorder) or just phone apps. 录音 alone means 'audio recording' or 'to record audio'. 放录音 = to play a recording.
